400530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1$

素因数の和:115

約数の個数: 48

約数和(自身を含む): 1054080

約数和(自身を除く): 653550

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 79, 130, 158, 169, 195, 237, 338, 390, 395, 474, 507, 790, 845, 1014, 1027, 1185, 1690, 2054, 2370, 2535, 3081, 5070, 5135, 6162, 10270, 13351, 15405, 26702, 30810, 40053, 66755, 80106, 133510, 200265, 400530]

約数ペア:

[(1, 400530), (2, 200265), (3, 133510), (5, 80106), (6, 66755), (10, 40053), (13, 30810), (15, 26702), (26, 15405), (30, 13351), (39, 10270), (65, 6162), (78, 5135), (79, 5070), (130, 3081), (158, 2535), (169, 2370), (195, 2054), (237, 1690), (338, 1185), (390, 1027), (395, 1014), (474, 845), (507, 790)]